Tres semanas en el primer año de la escuela de Maddie Ratcliff, el kindergartner Carolina del Sur es ya objeto de un experimento científico no deseado: ¿Cuál es la mejor forma de deshacerse de los piojos de la cabeza?
Los investigadores han venido advirtiendo desde hace años que los piojos en los EE.UU. y en todo el mundo están desarrollando inmunidad a los fuertes insecticidas comprados -over the counter- y tambien de los champús con prescripción médica. Se tarda sólo de tres a cinco años para que los insectos se adapten a un nuevo producto, a pesar de las contrarias afirmaciones de los fabricantes, señaló Shirley C. Gordon, un profesor asociado en la Florida Atlantic University quien estudia persistentemente sobre los piojos de la cabeza.
Los funcionarios de salud pública han seguido recomendando recomendando los productos, sin embargo, debido a la sobreexplotación de los medicamentos como la permetrina de Nix, la pyrethrin s de RID, el lindano de Kwell y la prescripción de malatión en Ovide todavía trabaja en algunas personas, algunas de las veces. Leer más Aqui
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In English below
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In English below
'Super Lice' Leave Parents Scratching Their Heads
Three weeks into Maddie Ratcliff's first year of school, the South Carolina kindergartner is already the subject of an unwelcome science experiment: What's the best way to get rid of head lice?
Researchers have been warning for years that head lice in the U.S. and around the world are developing immunity to the strong insecticides used in over-the-counter and prescription shampoos. It takes just three to five years for the bugs to adapt to a new product, despite claims to the contrary by the manufacturers, noted Shirley C. Gordon, an associate professor at Florida Atlantic University who studies persistent head lice.
Three weeks into Maddie Ratcliff's first year of school, the South Carolina kindergartner is already the subject of an unwelcome science experiment: What's the best way to get rid of head lice?
Researchers have been warning for years that head lice in the U.S. and around the world are developing immunity to the strong insecticides used in over-the-counter and prescription shampoos. It takes just three to five years for the bugs to adapt to a new product, despite claims to the contrary by the manufacturers, noted Shirley C. Gordon, an associate professor at Florida Atlantic University who studies persistent head lice.
Health officials have continued to recommend the products, however, because over-the-counter medications like the permethrin in Nix, the pyrethrin s in RID, the lindane in Kwell and the prescription malathion in Ovide still work in some people, some of the time. Read More Here
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